Answer:
because they need oxygen to breath and photosythesis is the process of carbon dioxide to oxygen
Explanation:
Jellyfish do not have a central nervous system.
Squids which belongs to Cephalopoda (class of Mollusca) have the most complex nervous system of the invertebrates. They have well-developed senses and large brains. So, they are considered as the most intelligent of the invertebrates.
Dolphins, on the other hand, are regarded as one the most intelligent animal.
The correct answers are:
• Human bodies may contain pathogenic bacteria, but these are often kept in check by other (nonpathogenic) species.
• Human bodies contain bacteria that are beneficial to certain processes (for example, digestion).
Non-pathogenic species or normal flora are present in the different parts of human body such as oral mucosa, skin, seminal fluid, uterus, lungs, saliva.. Microbiota of normal flora are usually commensal (co-exist without harming effects on humans) whie some of them even have a mutualistic relationship with their human hosts (benefits for both) such as those hosted in the intestine.
Answer:
Enzymes affect reactions in living cells by increasing the pH of the reactants to speed the reaction. increasing the activation energy and slowing down the reaction. lowering the temperature of the surrounding to help slow the reaction. lowering the activation energy and increasing the speed of the reaction.
Explanation:
I believe its A hope this helps sorry if im worng
