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Lena [83]
3 years ago
8

organisms that cannot make their own food and must obtain energy from external sources are called a. autotrophs. b. thylakoids.

c. plants. d. heterotrophs.
Biology
1 answer:
Colt1911 [192]3 years ago
7 0
The correct answer is D. Heterotrophs
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This structure provides support and protection for plant cells
KonstantinChe [14]
Cell wall.......... Hope it helps, Have a nice day :)
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When wind slows down, it deposits sediment. What feature is created by the deposition of loosely packed, mineral-rich soil?
tamaranim1 [39]

The feature that is created by deposition of the loosely packed and mineral-rich soil is Loess.

Loess is a loosely packed soil deposition due to blown wind of sediment rocks. The geography of loess is in between soil and clay. It is finer in texture than soil but has the coarse structure than the clay. This loess contains certain clay portions in order to hold the soil particles properly.

It can be mostly seen in Great Plains of North America, northern china, and other places around the world.

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3 years ago
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1. Describe what a growth factor is and<br> how it influences the cell cycle.
igomit [66]

Growth factors are hormones, proteins, or steroid molecules that regulate many cellular functions. They can stimulate the cell division by giving the signal to the cell to progress in the cell cycle.  

<u>Explanation</u>:  

Growth factors are naturally produced within the body and travels through the body to bind to their receptors present on their target cells. These growth factors are capable of signalling the cell to divide, proliferate, or heel. Their main aim is to signal or tell other cell when to do and what to do. Due to the binding with the receptors the growth factors activates specific genes.

8 0
3 years ago
In a typical monohybrid cross, all of the offspring in which generation will exhibit a single trait without blending?
Alexus [3.1K]

In F1 mono-hybrid cross, all of the offspring in which generation will exhibit a single trait without blending. It is one parents id homozygous for one allele, and other parents is homozygous for the allele.

Mono-hybrid cross used to identify the dominance relation between two alleles.  The hybrid of two organism with homozygous genotype which result in the opposite phenotype for genetic trait.

Mendel start this with the pair of pea plant by two contrasting trait such as tall and other one is dwarf. The cross pollination with each other which resulted that all plants are tall and this is called first hybrid generation or F1 progeny.

To learn more about F1 mono-hybrid cross here

brainly.com/question/11162425

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6 0
1 year ago
Select the correct answer. what primarily determines the carrying capacity of a population? a. birthrate b. death rate c. biotic
sasho [114]

Biotic and abiotic limitations determine the carrying capacity of a population.

<h3>What is carrying capacity?</h3>

Carrying capacity is defined as the maximum number of individuals that an environment can sustain without destroying the environment. It is determined by various factors such as food availability, water, and space.

So we can conclude that Biotic and abiotic limitations determine the carrying capacity of a population.

Learn more about capacity here:brainly.com/question/1464531

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8 0
2 years ago
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