In the early days of life on Earth, plants were exposed to extremely high doses of ultraviolet radiation. Constant UV exposure resulted in some land plants developing narrow leaves with thick, waxy cuticles. Over many, many generations, these narrow leaves evolved into needles.

Answers

Answer 1

Answer:

so, what is the question?

Explanation:


Related Questions

Why people get cholera in our community​

Answers

Answer:

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A person can get cholera by drinking water or eating food contaminated with cholera bacteria. In an epidemic, the source of the contamination is usually the feces of an infected person that contaminates water or food. The disease can spread rapidly in areas with inadequate treatment of sewage and drinking water.

Explanation:

The mode of transmission of Cholera is through fecal contamination of food or water. Transmission is therefore closely associated to poor environmental management due water and sanitation issues

Which is a part of interphase?
A. Telophase
B. Cytokinesis
C. Prophase
D. G, phase

Answers

Answer:

D. G1 phase

Explanation:

Interphase is a stage of the cell cycle that occurs between the G1, S, and G2 phases. The first gap phase is also known as the G1 phase. During this phase, the cell expands in size. It duplicates cell organelles and synthesizes molecular components necessary for mitotic division's later stages.

OAmalOHopeO

how are hydrogen bond similar to iconic bonds?

Answers

Explanation:

Hydrogen bonds are similar to ionic bonds because they both involve the attraction between opposite charges. ... This creates one atom with a negative charge, called an anion, and one atom with a positive charge, called a cation. The attraction between these charges hold the atoms together in an ionic bond.

Hydrogen bonds are inter-molecular bonds. The key difference between hydrogen bond and ionic bond is that ionic bonding exists between permanent anions and cations, whereas hydrogen bonds exist between partial positive and partial negative charges

Which is NOT part of our solar system? A. The Sun B. The Milky Way C. Jupiter D. Asteroids and comets

Answers

Answer:

The Milky Way

Explanation:

The Solar system is part of the Milky Way, not the other way around.

The answer is B. The Milky Way


⚠️please help ASAP, this is a one of the last questions for a very important test I’m taking and I would like to make sure my answer is correct

What did sharks and
rays develop that
their ancestors did
not have?
A. lobes that were the beginnings of arms and legs
B. jaws that helped with catching prey
C. legs to be able to survive on land
D. amniotic eggs

Answers

Answer:

i believe its D, amniotic eggs.

Explanation:

Correct Answer is : D

Please help me with this *picture included

Answers

Explanation:

sorry but the picture is not clear plus its kind of blank

Que porcentaje de la energía disponible en un nivel trafico puede ser transferido al siguiente nivel trafico

Answers

Answer:

Aproximadamente 10 centesimo.

Explanation:

En cada trófico nivel solo a pequeño proporción de energía (aproximadamente 10 centesimo) es trasladado a el siquente a nivel.

Pardon my spanish im not fluent. sorry

Which is a function of the cell structure that is labeled X

Answers

Answer:

the function of cell structure that is x is that it provides support.

Answer: C) it provides support

Which of the following is an example of a
homologous trait?
A. the wings of bees and birds
B. the forearm of different animals
C. the DNA of land animals

Answers

Answer:

A. the wings of bees and birds

Explanation:

A homologous trait is a trait that is similar morphologically and genetically to one another due to their shared ancestry. This means that the traits are formed from the same ancestors, hence, they are homologous or similar.

According to this question, the wings of bees and birds are homologous because they share the same ancestry.

Fertilizer sacks have a three- number value called the NPK value written on them. What does the NPK stand for (18-24-12 written on the bag)?

Answers

Answer:

it's. a level number

Explanation:

Every label carries three conspicuous numbers, usually right above or below the product name. These three numbers form what is called the fertilizer's N-P-K ratio — the proportion of three plant nutrients in order: nitrogen (N), phosphorus (P) and potassium (K).

The traits covered in this video are non-Mendelian traits, unlike #1. What does it mean for a trait to be non-Mendelian

Answers

Answer:

Non-Mendelian traits are traits that are not passed down with dominant and recessive alleles from one gene.

Explanation:

The fluid inside the mitochondria is called the _______________.

Answers

The fluid inside the mitochondria is called the matrix.

Answer:

Matrix

Explanation:

It is called Matrix

Which of the following best describes the difference between a cation and an anion?

Answers

Answer:

An anion is a negatively charged ion that has gained more electrons than protons and added them to it's energy levels. A cation is a positively charged ion that has lost electrons from it's energy levels. It also has more protons than neutrons.

Explanation:

PLEASE HELP Calculate the volume of the block using the formula

Answers

Answer:

21.553125

Explanation:

You can round to whatever you feel, but this is the answer when you multiply 2.75 x 2.75 x 2.85

:D

I have an atomic mass of 20 and I’m a gas what am i?

Answers

Answer:

Neon

Explanation:

Neon has atomic number of 10 and atomic mass 20.

Please help me answer this. Thank you ♡´・ᴗ・`♡

Answers

Answer:

i need help too

Explanation:

i need it today

Answer:

1. 23.5 degrees

2. 24 hours

3. 365 days

10. Earth's axis is tilted

Explanation: those are the only ones I know good luck :D!

define the term (1)semi-permeable membrane (2) osmosis tell the answer i will mark u as brainlist​

Answers

Answer:

a)the outermost part of an animal cell that selectively allows things to pass through and come out.

b) the passing of water molecules from higher conc. to lower conc.

Answer:

(a) Semi-permeable membrane:

A semipermeable membrane is a membrane that only allows the movement of solvent molecules but restricts the movement of solute particles across the membrane.

(b) Osmosis:

The process of movement of water molecules from a region of higher concentration to a region of lower concentration through a semipermeable membrane is called osmosis.

When two nearby concentrations are different, materials will tend to spread out to equalize the concentration. For example, if you put a drop of food colouring in some water it will gradually spread through the whole water.

Advocates for organic farming claim that their methods result in a number of benefits to farmers, consumers, and the environment. Scientists now plan to study the claims that organic farming advocates make by developing testable hypotheses about the economic and environmental benefits of growing organic foods. The scientists plan to collect data from farmers and other producers. Which hypothesis should the scientists use

Answers

Answer:

''Organic farming reduces the cost of farming that benefits the farmers economically and also better the environment.''

Explanation:

The hypothesis i.e. ''Organic farming reduces the cost of farming that benefits the farmers economically and also better the environment.'' This hypothesis can be tested by the scientists by taking two fields in different location having same environmental conditions. One field they apply conventional farming whereas other field apply only organic materials and no chemicals. We can see that the cost on expensive fertilizers, pesticides and weedicides can't used in organic farming so it is economically benefitted to the farmers as well as no pollution occurs which happens due to the use of chemicals. Moreover, the price of organic food is 3 times higher due to its non-hazardous nature.

Determine if this passage is an argument or nonargument: Evolution is central to vertebrate biology because it provides a principle that organizes the diversity we see among living vertebrates. Also it helps to fit extinct forms into the context of living species. Classification, initially a process of attaching names to organisms, has become a method of understanding evolution. --F. Harvey Pough, et al., Vertebrate Life, 7th edition Group of answer choices Nonargument Argument; conclusion: It helps to fit ... the context of living species. Argument; conclusion: Evolution is central to vertebrate biology. Argument; conclusion: Classification ... a method for understanding evolution. Argument; conclusion: It provides a principle ... among living vertebrates.

Answers

Answer:

C). Argument; conclusion: Classification,...a method of understanding evolution.

Explanation:

An argument is characterized as 'a series of propositions organized so that the final proposition is a conclusion that is intended to follow logically from the previous propositions.' The given passage exemplifies an argument as it puts forward a claim that can be argued upon if it is true or not and supported through adequate reasoning. The factual evidences are provided to support the validity of the proposition and the conclusion that 'classification initially a process...understanding evolution' is compelled. Thus, option C is the correct answer.

Some scientists contend that many species of dinosaur had a metabolism more like a warm-blooded mammal's than a cold-blooded reptile's. that many species of dinosaur had a metabolism more like that the metabolism of many dinosaur species were more like that the metabolisms of many species of dinosaurs were more like those of there were many species of dinosaurs that had metabolisms more like those of there were many dinosaur species that had a metabolism more like that of

Answers

Answer: that many species of dinosaur had a metabolism more like

Explanation:

From the question given, the correct use of tense occured in option A "that many species of dinosaur had a metabolism more like".

In option B, a wrong verb was used in this case. The wrong verb was "were" It should also be noted that the use of "that" and "than those" for options C, D and E aren't necessary.

Therefore, the correct option is A.

The statements on the left are incorrect
Write the correct statement.
Incorrect statements
1. Breathing produces carbon
dioxide from glucose
2. Only animals carry out
respiration. If someone can help with this it’d be greatly appreciated

Answers

Answer:

Carbon dioxide creates oxygen so we can breathe and seperates it from glucose

All species and humans breathe fish have gills to breathe underwater so not just animals have respiration.

Explanation:

Which is a part of interphase?
A. Prophase
B. Telophase
C. G, phase
D. Cytokinesis

Answers

Answer:

G phase

Explanation:

Prophase, Telophase are part of Mitosis.

Cytokinesis is the last phase of cell cycle.

Answer:

G phase

Explanation:

A student is conductidg their science experiment on the effect of caffeine on doas.
receives plain
He has 3 groups of test subjects. The 1st group of dogs
water. The 2nd group of dogs receives 10 mg of caffeine each, and the 3rd group receives 50 mg of caffeine each.
measure their activity levels
by recording how long each dog runs without stopping,
He will
in this experiment?
after giving them the pills. What is the dependent variable

Answers

Answer:

How long the dog runs without stopping

Explanation:

The dependent or responding variable in an experiment is the variable that is dependent on the changes made to the independent variable. It is also the variable that is measured or recorded in an experiment.

In this experiment where a student tests the effect of caffeine on dogs. Three groups of dogs were used for the test and they received water, 10mg caffeine and 50mg caffeine respectively. The different level of caffeine used is tested by recording how long each dog runs without stopping. Hence, how long the dog runs without stopping is the DEPENDENT VARIABLE.

What do you need to include for each graph?
All are important when making a graph
Equal increments (spacing)
units of measurement
Title

Answers

The correct answer is: “All are important when making a graph”

Why is Earth’s inner core solid and its outer core liquid ?

Answers

Answer:

no idea

Explanation:

Scientists know that the outer core is liquid and the inner core is solid because , S-waves do not go through the outer core. The strong magnetic field is caused by convection in the liquid outer core ( mark brainliest if correct sorry if its wrong though!! )

3. Which of the following is NOT a part of the female reproductive system: a. uterus b. oviduct C testes d. all of the above ​

Answers

Answer:

C. Testes

Explanation:

Testes are only seen in males. It is an organ that produces spermatozoa (male reproductive cells).

Which is an
example of asexual
reproduction by cloning?

Answers

Answer:

It is the reproduction method used by organisms like plants, fungi and bacteria.

Explanation:

Examples of such organisms are hazel trees, blueberry plants, the american sweetgum etc.

I think budding, during this process a structure called a bud develops from the parent cell then later it separates itself from the parent cell to form an independent organism which is genetically identical to the parent cell..for example in a hydra..

hope it helps

Pls help! I need to finish my test :/

When certain stems from a plant grow outward along the ground and establish new roots and shoots , this is reproduction using

A: tubers
B: runners
C: layering
D: corms

Answers

Answer:

B

Explanation:

Answer:

the answer is b

Explanation:

many types of grasses do this to develop a web of plants

How are ions transported around the plant

Answers

Plants absorb water from the soil by osmosis. They absorb mineral ions by active transport, against the concentration gradient. Root hair cells are adapted for taking up water and mineral ions by having a large surface area to increase the rate of absorption.
Xylem moves water and so do mineral ions from the roots to the leaves where amino acids are. From there they move to the rest of the plant

¿Cómo se llama el proceso de señalización en el que las señales se secretan hacia el torrente sanguíneo y se distribuyen por todo el cuerpo? Seleccione una: a.Neuronal b.Autocrina c.Endocrina d.Paracrina

Answers

Answer:

c.Endocrina

Explanation:

El sistema endocrino consta de órganos que producen sustancias químicas especiales llamadas hormonas.

Las hormonas son mensajeros químicos secretados directamente en el torrente sanguíneo que regulan diversas actividades en el cuerpo.

Por lo tanto, el sistema endocrino secreta sustancias químicas en el torrente sanguíneo.

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