BIOLOGY HIGH SCHOOL

In order for a population to survive, sexual reproduction must produce A) more females than males. B) more males than females. C) more offspring that can survive and reproduce. D) a large number of self-fertilized individuals.

Answers

Answer 1
Answer: The answer is C) more offspring that can survive and reproduce.

In order for a population to survive, there must be enough offspring at least to maintain the number of population. It is better if there are more offspring able to survive and reproduce and species evolved different strategies to achieve this, such as care for the offspring.
On the other hand, neither more males nor more females will help a population to survive. There will be no variability in a gene pool because one male will cross with many females and vice versa. And with greater variability of characteristics, the greater is the chance to survive. Also, a large number of self-fertilized individuals could not be the right answer because this is an example of asexual (self-fertilization) reproduction.
Answer 2
Answer:

c. more offspring that can survive and reproduce.

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Is formed when one or more than one atom bonds to another atom.

Answers

A molecule is a fundamental concept in chemistry that represents the smallest unit of a chemical compound that retains the properties of that compound. It's formed when two or more atoms come together and bond with each other.

Atoms are the basic building blocks of matter. They consist of a nucleus composed of protons and neutrons, surrounded by a cloud of electrons. Atoms can combine with each other through chemical bonds to form molecules. One of the most common types of chemical bonds is the covalent bond. In a covalent bond, atoms share electrons to achieve a more stable electron configuration.

In ionic bonding, atoms transfer electrons to each other, resulting in the formation of ions with opposite charges. These ions are attracted to each other, creating an ionic bond. The arrangement of atoms within a molecule is crucial to its properties and behavior. The type and arrangement of bonds determine the molecule's shape and how it interacts with other molecules.

To learn more about chemical compound , here

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Explanation:A special case of polar forces occurs in what is called the hydrogen bond. In many situations, when hydrogen forms a covalent bond with another atom , electrons move toward that atom, and the hydrogen acquires a slight positive charge. The hydrogen, in turn, attracts another atom, thereby forming a kind of bridge between the two.

i think

Describe the meaning of leukemia,its causes and concequences and how it can be treated

Answers

Answer:

Leukemia is cancer of the body's blood-forming tissues, including the bone marrow and the lymphatic system. Many types of leukemia exist. Some forms of leukemia are more common in children. Other forms of leukemia occur mostly in adults. Leukemia usually involves the white blood cells.

Which two of these characteristics does an organism with bilateral symmetry possess?lack of tissue
symmetrical in many ways across a central axis
presence of a head
development from three cell layers

Answers

Answer:

symmetrical in many ways across a central axis

presence of a head

Explanation:

Right!!

The answer is B and C

Is a source of genetic variation that refers to a random error in the genetic code.

Answers

Mutations is  source of genetic variation that refers to a random error in he genetic code

Answer: Mutation

Explanation:

A mutation is a random change in a cell's genetic code due to a variety of causes. The change can be small and insignificant, or it can be major. Mutations can be passed onto offspring through reproduction, thus increasing the genetic variation within a population.

Where would you find members of class polychaeta?​

Answers

Answer:

you find them in moist soil

Explanation:

Answer:

a few are known from moist soil on land.

Explanation:

because I said it :v

How does access to sunlight affect the biodiversity of a river ecosystem

Answers

Areas with more access to sunlight will have more brush and plant life while areas with less access to sunlight will either grow less or grow differently, i.e. certain mosses that don't require as much sun as regular green leafy plants. This will create pockets of high and low biodiversity accordingly.

Answer:

Plant and animal life is limited in areas with little access to sunlight.

Explanation:

This is B on edge if you are taking APES :)
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