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pochemuha
4 years ago
11

Which abiotic factor is a typical limiting factor in a freshwater ecosystem? A. salt concentration B. dissolved oxygen C. bacter

ia D. algae
Biology
1 answer:
Kobotan [32]4 years ago
6 0
C not sure tho so be cautious
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Provide at least three ways in which Mountains can be impacted by either natural processes or human processes, including both co
Papessa [141]

Answer:

Chemical & Mechanical Weathering

Erosion

Explosive Volcanic Eruptions

Explanation:

8 0
3 years ago
A chimpanzee has 48 chromosomes. When performing meiosis, one chromosome does not split properly in Anaphase II, causing one cel
Schach [20]

Answer:

The mutated cell will have 25 chromosomes.

Explanation:

Meiosis is a cell division process in sexual reproduction which involves two successive divisions of a cell having a diploid (2n) number of chromosomes into four daughter cells having a haploid (1n) number of chromosomes.

Meiosis consists of two successive nuclear divisions, meiosis I and meiosis II. Each division consists of these stages: prophase, metaphase, anaphase, and telophase.

Anaphase consists of anaphase I and II. During anaphase II, the centromeres linking the two pairs of chromosomes which are called chromatids separate, and the sister chromatids move toward the opposite poles of the cell and are now called chromosomes.

Therefore in the chimpanzee having 48 chromosomes, after underoing meiosis, each daughter cell will have 24 chromosomes. If there is a case of non-separation of one chromosome, the cell will have 1n + 1 chromosomes i.e. 24 + 1 = 25 chromosomes.

4 0
3 years ago
How is cellular respiration, both anaerobic and aerobic, instrumental in muscle contractions?
Dmitry [639]
<span>Control of physiological activities. Homeostasis involves the steady state and regulation of the body's internal environment. Irritability is the ability to respond to a stimulus.</span>
3 0
4 years ago
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The student is studying the movement of substances across the cell membrane. She understands that some substances combine with s
larisa86 [58]

Answer:

Facilitated diffusion

Explanation:

Facilitated diffusion is the transport of hydrophilic molecules that can not freely cross the membrane. Channel protein and many carrier proteins are in charge of this transport. When uncharged molecules cross the membrane, they do it according to their concentration gradients, going from the more concentrated side to the lower concentrated one. When ions need to cross the membrane, the process depends on an electrochemical gradient.  

Facilitated diffusion is a passive transport process because they only depend on electrochemical gradients, so they do not need any energy to occur.

3 0
3 years ago
What is the significance of plasmids to bacteria?
butalik [34]

Answer:

Explanation:

They allow bacteria to adapt in condition

4 0
3 years ago
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