Select the correct answer from each drop-down menu.

An advertisement for health supplement for dogs claims to build lean muscle and strengthen tendons and ligament as well as provi

UkoKoshka [18]

The correct answer is vitamins and proteins.

Using the supplements for dog is important in order to make the muscle growth and to strengthen the tissues.

Vitamins, such as Vitamin C, which is required for a dog to support collagen production or Vitamin E which has antioxidant function.

8 0

3 years ago

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The crispr system involves the cas9 enzyme, which identifies specific nucleotides to be cut using a(n) ________ molecule as a gu

bonufazy [111]

Answer:

RNA

Explanation:

CRISPR system was discovered by a Japanese scientist. Naturally bacteria and many other prokaryotes have CRISPR system in their genome which they use as a self defense against a pathogen which is invading them. It consists of inter spaced, short palindromic nucleotide repeats which encode a guide RNA (gRNA). This guide RNA (gRNA) recognizes the target sequence on the pathogen. The gRNA is followed by Cas9 enzyme which along with the gRNA plays a very important role in breaking genome of the pathogen. Once the target gene is cut down the rest of the DNA can be rejoined by non homologous end joining.

But nowadays, scientists are using this system for genome editing and incorporating desired gene between the two ends which are cut down by CRISPR Cas9 system.

7 0

4 years ago

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Some invertebrates combine morphological simplicity with features of great structural or biochemical complexity. Select all corr

Vlad [161]

Answer:

The correct answer is -Sponges lack true tissue but have morevariation in cell type than animas in oter phylum.

Explanation:

Sponges are belong under phylum porifera which have diverse form encrusting sheets to volcano shaped mounds.

The tubes that contain in their body are differ in size from millimeter upto one meter.

The poriferans contain canal system and with help of this, they pump water which enters through a specialed pores called ostia that flows through canal called spongocoel and finally the water exits from their body through oscula.

The sponges show complex organization as their body contain single tube with 2 cell layer thick.

Ascon,leucon,sycons are the level of complexity.

8 0

3 years ago

For many years, whole or fragmented hominid skulls have been excavated. Some of these skulls date from as early as 6 million yea

hjlf

The corrected answer is D

8 0

3 years ago

Is it true or false of the finding of evidence of liquid water on Mars is important because water is essential for life?

ki77a [65]

Water is essential to life because it creates us humans, plants, animals, etc. So, if we find water on Mars it would be important because water is essential to life, meaning we would know that there would be some kind of life on Mars because water makes up anything.

7 0

3 years ago