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Lilit [14]
2 years ago
10

The ultimate sourcd of energy in most food chains or food webs is

Biology
1 answer:
lisabon 2012 [21]2 years ago
8 0

Answer:

The sun is the ultimate source

Explanation:

Every producer draws energy from the sun through photosynthesis and every consumer either eats the producer or another consumer

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Match the following terms and definitions
Firdavs [7]
1. Gene- a portion of DNA which codes a specific hereditary trait
2. Allele- alternate forms of a specific gene
3. Trait- A genetic characteristic of the individual
4. Chromosome - a thread-like molecule....

4 0
3 years ago
What type of reproductive life cycle is characterized by the steps shown below? diploid zygote -> mitosis -> diploid adult
mihalych1998 [28]
These steps are characteristic of a diplontic life cycle, in which haploid gametes are produced.
6 0
3 years ago
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One gene in the human genome may be expressed at a much higher level than another. Can differences in types of cis elements pres
Oksana_A [137]

Answer:

No, CREs usually don't account for differences in gene expression levels.

Explanation:

<em>Cis</em>-regulatory elements (CREs) are non-coding DNA regions that regulate adjacent gene <em>transcription</em>. They usually do it by binding to transcription factors. They are in charge of influencing the rate of which transcription occurs, and less with how much a gene is expressed. On the other hand, trans-regulatory elements are DNA sequences that encode for upstream regulators that can modify or regulate <em>gene expression levels</em>.

Therefore, cis elements are not really in charge of expression levels, mostly transcription rates of single genes, rather. Trans elements are more involved in expression levels.

3 0
2 years ago
If the first low tide occurs at 5:10 a.m. on Friday when will the next low tide occur​
jonny [76]

The correct answer is - 5:35 PM on Friday.

The low tides, as well as the high tides, occur two times in a lunar day, on exactly every half a lunar day passed. A lunar day is 24 hours and 50 minutes long, so every next low tide, or high tide, appears after 12 hours and 25 minutes after the previous one. In this situation we have a low tide that has appeared at 5:10 AM on Friday, so in order to calculate when the other low tide will appear we need to add 12 hours and 25 minutes on it, and that will gives the information that the next low tide will appear at 5:35 PM on Friday.

6 0
3 years ago
What creates seasons ?
Ymorist [56]
Are caused by the tilt of the Earth's rotational axis away or toward the sun as it travels around the sun
6 0
3 years ago
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