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Masteriza [31]
2 years ago
7

Which does not require a moist environment for reproduction? fern moss conifer

Biology
1 answer:
Elina [12.6K]2 years ago
5 0
Answer: Conifers

Explanation: they do not rely on water to unite sperm and egg.
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Clearing forests of photosynthetic plants will disrupt the cycle of which matter in the biosphere?
Marrrta [24]
It would disrupt the CO2 cycle, since plants would no longer absorb carbon dioxixde, nor let out oxygen meaning it would also provide animals with little oxygen, and they can’t produce CO2 then either
6 0
3 years ago
An accident resulted in a man’s hand being cut off from his arm. Paramedics arriving first on the scene
podryga [215]
I believe that it is because when you put the hand on ice it causes the hand too cool and prevents/slows the rate at which the nerves get damaged.
8 0
3 years ago
Differentiate Humoral immunity vs cell mediated immunity
trapecia [35]

Answer:

Cell-mediated immunity develops through a network of interactions that results in defense against microorganisms that survive within phagocytes or other cells. The response is initiated by the recognition of intracellular microorganism antigen by T cells through the histocompatibility complex. In the CD8 response, only the target cell carrying the class I associated antigen can be lysed or induced to apoptosis. In another mechanism of the cellular response, CD4 + Th1 T cells activate, for example, cytokine-infected macrophages such as IFN. When a pathogen resists the effects of activated macrophages, chronic infection may develop.

The hormonal immunity response leads to the destruction of extracellular microorganisms and prevents or decreases the spread of intracellular cells by neutralizing, opsonizing and activating the complement system.

4 0
3 years ago
Two heterozygous dominant parents for attached earlobes are crossed to predict the traits of their offspring. What is the ratio
photoshop1234 [79]

Answer:

A - 3:1

Explanation:

In order to determine what number of offspring will have attached earlobes, we must make a Punnett table. We know that attached earlobes are the dominant gene, and we know unattached earlobes are recessive.

| P | p

——————-

P | PP | Pp |

——————-

p | Pp | pp |

As we can see, only one out of the four squares has two recessive genes. Therefore, our answer would be A - 3:1.

5 0
3 years ago
Read 2 more answers
During a drought on the galapagos islands, finches with larger beaks were able to crack the large tough seeds produced by plants
TEA [102]

It is an example of directional selection.

The different kinds of natural selection can influence the distribution of phenotypes within a population. In stabilizing selection, an average phenotype is preferred.

In directional selection, a modification in the surrounding changes the spectrum of the observed phenotypes, and in diversifying selection the extreme values for a trait are preferred over the transitional values. This kind of selection usually pushes speciation.

The directional selection, in the field of population genetics, refers to a mode of natural selection in which an extreme phenotype is preferred over other phenotypes, making the allele frequency to change with time in the orientation of that phenotype.

3 0
3 years ago
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